화학공학소재연구정보센터
Journal of the American Ceramic Society, Vol.97, No.11, 3378-3379, 2014
Dielectric Properties of Lithium Molybdate Ceramic Fabricated at Room Temperature
Lithium molybdate disks were fabricated by moistening water-soluble Li2MoO4 powder with deionized water and compressing it under a pressure of 130MPa. Disks were postprocessed at room temperature, at 120 degrees C, and at 540 degrees C, which is a common sintering temperature for Li2MoO4. Regardless of the postprocessing temperature, densities as high as 87%-93% of the theoretical value were achieved. The X-ray diffraction patterns of processed disks were all the same with no signs of hydrates or constitutional water. The samples also exhibited very similar microstructures and microwave dielectric properties with a relative permittivity of 4.6-5.2 and a Qxf value of 10200-18500 at 9.6GHz, depending on the postprocessing temperature.